Home / 610,777,129.92-917,026,629.12-438,159,844.32

Finding the Fourth Proportional to 610,777,129.92, 917,026,629.12 and 438,159,844.32

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Solution

The fourth proportional to 610,777,129.92, 917,026,629.12 and 438,159,844.32 is: 657,857,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,777,129.92 : 917,026,629.12 = 438,159,844.32 : x
  2. Step 2: Convert to fraction form
    610,777,129.92/917,026,629.12 = 438,159,844.32/x
  3. Step 3: Cross multiply
    610,777,129.92x = 917,026,629.12 × 438,159,844.32
  4. Step 4: Simplify right side
    610,777,129.92x = 401,804,245,052,513,600
  5. Step 5: Solve for x
    x = 401,804,245,052,513,600/610,777,129.92
  6. Step 6: Final answer
    x = 657,857,384.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.